Fix compiler warnings on "make android_arm"

src/compiler/js-operator.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-operator.h"
 
 #include <limits>
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
@@ skipping 358 matching lines @@
 }
 
 
 const CreateLiteralParameters& CreateLiteralParametersOf(const Operator* op) {
   DCHECK(op->opcode() == IrOpcode::kJSCreateLiteralArray ||
          op->opcode() == IrOpcode::kJSCreateLiteralObject ||
          op->opcode() == IrOpcode::kJSCreateLiteralRegExp);
   return OpParameter<CreateLiteralParameters>(op);
 }
 
-const BinaryOperationHint BinaryOperationHintOf(const Operator* op) {
+BinaryOperationHint BinaryOperationHintOf(const Operator* op) {
   DCHECK(op->opcode() == IrOpcode::kJSBitwiseOr ||
          op->opcode() == IrOpcode::kJSBitwiseXor ||
          op->opcode() == IrOpcode::kJSBitwiseAnd ||
          op->opcode() == IrOpcode::kJSShiftLeft ||
          op->opcode() == IrOpcode::kJSShiftRight ||
          op->opcode() == IrOpcode::kJSShiftRightLogical ||
          op->opcode() == IrOpcode::kJSAdd ||
          op->opcode() == IrOpcode::kJSSubtract ||
          op->opcode() == IrOpcode::kJSMultiply ||
          op->opcode() == IrOpcode::kJSDivide ||
          op->opcode() == IrOpcode::kJSModulus);
   return OpParameter<BinaryOperationHint>(op);
 }
 
-const CompareOperationHint CompareOperationHintOf(const Operator* op) {
+CompareOperationHint CompareOperationHintOf(const Operator* op) {
   DCHECK(op->opcode() == IrOpcode::kJSEqual ||
          op->opcode() == IrOpcode::kJSNotEqual ||
          op->opcode() == IrOpcode::kJSStrictEqual ||
          op->opcode() == IrOpcode::kJSStrictNotEqual ||
          op->opcode() == IrOpcode::kJSLessThan ||
          op->opcode() == IrOpcode::kJSGreaterThan ||
          op->opcode() == IrOpcode::kJSLessThanOrEqual ||
          op->opcode() == IrOpcode::kJSGreaterThanOrEqual);
   return OpParameter<CompareOperationHint>(op);
 }
@@ skipping 432 matching lines @@
   return new (zone()) Operator1<Handle<ScopeInfo>>(               // --
       IrOpcode::kJSCreateScriptContext, Operator::kNoProperties,  // opcode
       "JSCreateScriptContext",                                    // name
       1, 1, 1, 1, 1, 2,                                           // counts
       scpope_info);                                               // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8